Matsushita Electric Industrial Co., Ltd.

Kazumi Iwasaki

Jirou Kajino

Toshikazu Tomioka

Kazutomo Higa

Keiji Inaba

Material of electronics component and electronics components using the same material are provided. The material includes repellent that can withstand severe solder-mounting conditions, and the electronics components such as printed wiring boards can lasts repelling effect for a long period. The material is used in electronics components requiring a soldering process, and includes at least curable resin, filler and the repellent. The repellent has vapor pressure of less than 10,000 nPa at room temperature. Film is formed using the material at a given place of an electronics component such as a printed wiring board.

Electronic component-use material and electronic component using it

Invasion of insects into electronic appliances is prevented, nesting of insects in the electronic appliances is prevented, and these preventing actions are maintained for a long period. Further, troubles of electronic appliances due to invasion of insects are decreased. Insect control measures may be applied in all electronic appliances including small and lightweight types. It includes (a) a housing, and (b) an electronic circuit disposed in the housing. The electronic circuit includes a printed wiring board having an electronic material containing a repellent, and an electronic component mounted on the printed wiring board. The electronic material containing the repellent is paste, solder resist, parts layout, insulating resin, prepreg cured piece, resin film, or polyimide film.

Electronic appliance

A printed wiring board to suppresses invasion and occupation of insects having sensory nerves such as cockroaches and ants. Accordingly, it prevents malfunctioning of electronic appliances due to the presence of insects. It further avoids thickness fluctuation or blurring of the repellent layer of electronic material containing the repellent chemical. These printed wiring boards are warp-free and appear normal. A printed wiring board of the invention contains an electronic material formed on at least one of first and second surfaces of an insulating substrate. The electronic material contains a neurologically active insect and a binder. The electronic material forms a selective pattern.

Printed wiring board with insect repellant

A magnetic tape recording and/or reproducing apparatus wherein a magnetic tape is drawn out of a tape cartridge by tape drawing means by the movement from its inoperative position to its operative position, and is wound up onto one of the reels of the tape cartridge by turntable rotating means due to the movement of the tape drawing means from its operative position to its inoperative position.

Growing community of inventors

Nara, Japan

Kazumi Iwasaki